A Dŵr Cymru Welsh Water spokeswoman said: “We were alerted to a burst on a key water main in the Mold area late Saturday evening and immediately sent a team to the site and are now carrying out an emergency repair. “This is impacting on water supplies to some customers in the post code areas CH7 and CH8 with low pressure in further surrounding areas. “We are sorry for any inconvenience.

“Once restored, the water supply may discoloured or aerated for a period of time.

“This is not unusual after an incident of this nature and should clear within a short period of time.

“If anyone has concerns about their water supply, we would ask they call our helpline on 0800 052 0130.”